Slightly dampen a soft cotton cloth with water ONLY and wipe the screen. Wipe the screen dry with a dry part of the same cloth. Blot any remaining dust or stains with a loop of clear tape.
Check the system air vents regularly for dust. If available, use the soft brush attachment of a vacuum cleaner to gently clean the air vents.
Simply remove the screws on the outer shell, carefully remove the covers until you can clearly see the disc loader, and then apply a cotton swab and dab of rubbing alcohol to the lens of the laser (It will look glassy and shiny, can’t miss it).
Locate the console in an area where its intake and exhaust ports have at least 10 cm of ventilation space.
You should always use water or rubbing alcohol to clean your controllers. Most gamepads have a nice grippy finish, and harsh cleaners like bleach can ruin the look and feel of the plastic. It’s also a good idea to avoid using compressed air, as the force of air can damage components inside the controller.
It seems it’s caused by sweaty palms combining with the dust and dirt in the air (if you don’t have a HEPA air filter, you have dirt in your house), what forms an unpleasant looking mess. It’s usually in a line where we grip the controllers, as well as on the triggers and shoulder buttons.
Use alcohol swabs to wipe the controller thoroughly to remove any grease or dirt. For wireless controllers, avoid using alcohol swabs (or moisture) in the battery compartment.
Edit: It turned out that the fan intake was too close to the wall so it created some sort of turbulence that led to the noise. All I had to do was flip it over and it’s back to “normal” now.
Put the fingers of one hand together and wrap a long strip of tape around the tips, sticky part facing out. Other tape can be used, but we found masking tape to be the most effective. Dab the sticky tape on the console’s sticky areas to remove the sticky residue.
The disc slot is always open and unprotected, which means that even if you’re meticulous about handling your discs, dust and dirt can easily get trapped in the disc drive. In addition, the Wii will NOT read CD or DVD formats, which means NO disc cleaner will work except this product.
Never, under any circumstances, open your Wii to clean it. Do not use compressed air to clean the disc tray or its other nooks and crannies. Both will cause irreparable damage to your Wii and are NOT covered by any warranties offered by Nintendo or retailers.